1924 - (August 13 with the Old Style calendar) Catastrophe of Smyrna, known as the Asia Minor Catastrophe to Greeks, occurs. The Ottoman army expels Greeks and other non-Turks from Asia Minor in systematic ethnic cleansing. One of the first of the 20th Century.

1928 - May Donoghue drinks a bottle of ginger beer at a cafe in Paisley and finds the remains of a snail in the bottle. She launches a civil action against the drink manufacturer which becomes one of the famous cases in English Common Law; that of Donoghue v. Stevenson.